lilly



(No Model.)

, 0. H. LILLY.

Lightning Rod Insulator.

No. 230,290. Patented July 20,1880.

fiirzesseat- 522/5 24 gw 4 %ZOW%% NJETERS, PHOTQ-LITHOGRAPHER, WASHINGTON D C NITED STATES PATENT Orrieti.

CHARLES H. LILLY, OF NEW YORK, N. Y.

LIGHTNING-ROD INSULATOR.

SPECIFICATION forming part of Letters Patent No. 230,290, dated July 20, 1880.

- Application filed April 30, 1880. (No model.)

To all whom it may concern:

Be it known that I, CHARLES H. LILLY, of the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Lightning-Bod Insulators, of which the following is a specification.

My invention relates to insulators for insulatin g rods from the walls or sides of buildings and the object of my invention is to provide such an insulator, affording greater convenience for application to the rods, and es pecially for application to rods already put up, to which the ring-insulators in common use are not conveniently applicable, as they have to he slipped over the ends of the rods.

To this end my invention consists in the combination of a'glass insulator having an opening through it for a rod, a flat open back adapted to fit against a support and admitting of its being applied transversely to the rod, and a metal strap or staple open at the back, so as to slip over said insulator, and extending entirely around the front thereof for clamping it to a wall or support. In connection with such an insulator I preferably employ a filling-piece, which may be inserted from the top to fill the open back of the insulator, and the filling-piece may have a projecting head to prevent its dropping out of the insulator, and the opening and fillingpiece may be dovetailed to prevent the latter from being removed laterally from the back.

In the accompanying drawings, Figure 1 represents a front View of an insulator embodying my invention. Fig. 2 represents a back view thereof. Fig. 3 represents a plan thereof, and Fig. 4 represents a transverse section thereof. 1

Similar letters of reference designate correspondin g parts in all the figures.

A designates the glass insulator having a central opening, a, for the rod, and an open flat back, so as to afford convenience for placing it upon a rod laterally or transversely without the necessity of uncoupling the end of the rod and slipping the insulator over the end thereof.

B designates a strap for embracing the insulator A and securing it to a wall or the side of a building. As here represented, its ends are bent outwardly and furnished with holes I) for the reception of screws or nails; but in lieu thereof a staple having pointed ends to be dri en into a wall might be used. The strap or staple, which is open at the back so as to afford provision for slipping it over the insulator, extends entirely around the front thereof, and affords a cheap and easily-applied means for securing the insulator to a support.

To hold the piece A more securely it is constructed with a recess, 0, in which the strap B fits.

The open back of the insulator may be left open, but is preferably closed by means of a filling-piece, 0, adapted to be inserted from the top after the insulator is applied to the rod.

In order to prevent the filling-piece from dropping through when it fits loosely, I construct it with a head or flange, d. and provide the piece A with a rabbet or recess, 0, into which said head or flange tits, and if desirable the opening in the back and the fillingpiece may be wedge-shaped or taper, as shown clearly in Fi 2.

The opening in the hack and the fillingpiece are preferably correspondingly dovetailed, as shown in Figs. 3 and 4:, so that the filling-piece may not be removed laterally from the back.

By my invention I furnish an insulator which may be easily applied to a rod without the necessity of uncoupling the rod and slipping the insulator over the end, and which, in consequence thereof, may be cheaply applied.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination of a glass insulator having an opening through it for a rod, a Hat open back adapted to fit against a support and admitting of its being applied transversely to the rod, and a metal strap or staple open at the back so as to slip over said insulator, and extending entirely around the front thereof, for clamping it to a wall or sup port, substantially as specified.

2. The combination of a glass insulator having an opening through it for a rod, and the strap or staple B, and the wedge-shaped an open back, a strap 01 staple for clamping dovetailed filling-piece O, constructed with a 10 the insulator to a building, and a filling-piece flanged head, substantially as specified.

fitting said open back and having a flanged head, substantially as specified. LILLY 3. The combination of the glass insulator Witnesses:

A, constructed with a central opening, a, and FREDK. HAYNES,

a dovetailed and taper opening in the back, of E. P. JESsUP. 

